10/06/2026
The Native Plants Program seed cleaning shop has a sizeable array of equipment specifically designed for cleaning many kinds of seed. From metal drums with spinning chains to dislodge seed from hard pods to sieves and air separators used to separate seed from chaff, our small and mighty shop works well for most of the species we collect. However, some species that have stiff hairs or "awns" take extra work to clean using the tools we have. Fortunately, in 2025 as well as this past week, SVS staff was able to work with the USDA NRCS Plant Materials Center in Aberdeen Idaho to put these difficult seeds through their top-notch professional equipment. The Aberdeen "PMC" has been a national leader in working with both crops and native plants over the last few decades, and has all the professional equipment to show for it. Not only did it save SVS dozens of hours of seed cleaning, but the trip helped make connections and share knowledge. Although SVS and the Aberdeen PMC are at opposite ends of the native seed supply chain, both are working to improve the use of native seed in restoration to protect Idaho's exceptional and rich ecosystems.
Photos details:
SVS Native Plants program Specialist Eli Windy carefully feeds seed from Douglas Dustymaiden (Chaenactis douglasii) through a Westrup LA-H "brush machine" to remove the fluffy wings from the seed, while USDA NRCS Aberdeen Plant Material Center Technician Derek Jolley monitors the machine for the correct settings.
The fluffy seed of Heartleaf Arnica (Arnica cordifolia) right before and right after spending just a few seconds in the brush machine.